The FBI has arrested a gun-toting bandit wanted for a string of bank robberies on the East Coast, including several in the Tri-State area.

Federal investigators, with the help of local police agencies, busted 38-year-old Luis Alomar in Medford, Long Island at 2:30 a.m. Tuesday after an arrest warrant was issued for him in Delaware, The FBI said.

Alomar, who has several aliases and ties to Mastic and Shirley, LI, allegedly knocked off multiple banks in Delaware, New York and New Jersey, the FBI said.

In some cases, the 5-foot-4, 145 pound thief allegedly strolled up to tellers, flashed a weapon and threatened to shoot them if they uttered a word.

In others, he allegedly slipped a teller a note warning that he had a gun and then demanded large bills.